Dimensions
Size comparison
Pro 4GSEMFW
| Pro 4 | GSEMFW | Difference | |
|---|---|---|---|
| Case size | 47 mm | 47 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Pro 4 better than GSEMFW?
- Battery life (smartwatch mode)5 days vs 2 days2.5×
- Resolution (width)480 px vs 240 px2×
Why is GSEMFW better than Pro 4?
- Battery capacity440 mAh vs 600 mAh+36%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 47 mm |
| Weight | — | 38 g |
| Thickness | 9.9 mm | — |
| Case material | Stainless steel | Plastic / polymer |
| Strap material | — | Silikon |
| Colours | — | Black |
| Display | ||
| Screen size | 1.56″ | — |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Always-on display | Yes | — |
| Resolution (width) | 480 px | 240 px |
| Resolution (height) | 480 px | 240 px |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | 2 days |
| Battery capacity | 440 mAh | 600 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| HRV tracking | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2 | heart rate |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| LTE (cellular) | — | Yes |
| Bluetooth | 5.1 | — |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
| Chipset | Jieli AC7013A | — |
